Template:Citation Style documentation/id1

• id: A unique identifier, used where none of the specialized identifiers are applicable; wikilink or use an external link template as applicable. For example, |{{SAFESUBST:#if:id|id=}}NCJ 255676 will append "NCJ 255676" at the end of the citation. You can use templates such as |{{SAFESUBST:#if:id|id=}}{{NCJ|255676}} to append NCJ 255676 instead.